[wasm] mips: Turn off signalling NaN tests on mips and mips64.

src/mips/simulator-mips.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <cmath>
 
 #if V8_TARGET_ARCH_MIPS
@@ skipping 4465 matching lines @@
   int32_t s4_val = get_register(s4);
   int32_t s5_val = get_register(s5);
   int32_t s6_val = get_register(s6);
   int32_t s7_val = get_register(s7);
   int32_t gp_val = get_register(gp);
   int32_t sp_val = get_register(sp);
   int32_t fp_val = get_register(fp);
 
   // Set up the callee-saved registers with a known value. To be able to check
   // that they are preserved properly across JS execution.
-  int32_t callee_saved_value = icount_;
+  int32_t callee_saved_value = static_cast<int32_t>(icount_);
   set_register(s0, callee_saved_value);
   set_register(s1, callee_saved_value);
   set_register(s2, callee_saved_value);
   set_register(s3, callee_saved_value);
   set_register(s4, callee_saved_value);
   set_register(s5, callee_saved_value);
   set_register(s6, callee_saved_value);
   set_register(s7, callee_saved_value);
   set_register(gp, callee_saved_value);
   set_register(fp, callee_saved_value);
@@ skipping 107 matching lines @@
 
 
 #undef UNSUPPORTED
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // USE_SIMULATOR
 
 #endif  // V8_TARGET_ARCH_MIPS